Physics

Using gravitational waves to approximate pi, physicists see no problem with Einstein's theory of general relativity.

A new paper used an advanced "Bayesian" model to show that the emergence of intelligent life on Earth was probably a lucky break.

What if one of the strangest, most unsettling findings in particle physics turned out to be an illusion? A new study suggest a simple physical explanation for a mysterious event.

There's a microwave power experiment heading to space Saturday (May 16) aboard the Air Force's secretive X-37B spaceplane. Researchers hope it could lead to a new global power source.

Two entirely different ways of "weighing" the cosmos are producing disparate results. The discrepancy could be a sign that physicists will need to revise the standard model of cosmology.

The 19.6 ton (17,800 kilogram) body of a Chinese rocket slammed into the planet's atmosphere today (May 11). It was the biggest such incident since 1991.

A new paper by physicist Edward Witten proposes hunting Planet 9 using a fleet of laser-launched probes like Breakthrough Starshots'.

Martian meteorites found in Antarctica in the 1980s just gave up the ghosts of ancient water, rich in organic nitrogen, that existed on Mars.

A new online training course introduces students to quantum concepts, including superposition, qubits, encryption and many others.

Right now, key measurements of the universe's expansion are contradicting each other. A lost form of dark matter could help them agree.

There's an asymmetry between the universe's matter and antimatter. This experiment might explain why.

A key signal for a certain kind of dark matter failed to turn up in a search throughout the Milky Way. Now scientists are disagreeing about what that means.

The bubble concept could explain one of the strangest mysteries plaguing astrophysics: Why can't we tell how fast the universe is expanding?

As the universe cooled in the era after the Big Bang, a supermassive black hole had already formed in the center of a galaxy, forming a giant engine of energy we can still see today.

Something's up with the North Star, a cepheid. Its distance, mass and age should be easy to measure. But new calculations keep disagreeing with one another and failing to make sense.

A new theory suggests that dark matter might not be made of undiscovered, never-before-seen particles. Instead, researchers write, it might be made from a type of "hexaquark" detected in 2014.

Organizers of the American Physical Society's March conference made the decision to cancel due to coronavirus concerns less than two days before the conference was set to begin.

Physicist Freeman Dyson was known for his work on quantum physics and mathematics, as well as his big ideas about the far future.

The bubbling, raucous quantum vacuum distorts the shape of every hydrogen atom in the universe, and it distorts antimatter "antihydrogen" too.